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Mar
1
comment Silicon-based life
Also, there is a good reason to closing old posts, not for the heck and fun of it. People tend to see posts on this site and ask questions similar to them. Having broad posts / off topic posts / open basic homework posts left open lead to more of the kind being asked.
Mar
1
comment Silicon-based life
Some people reopened it because they felt that it was not off topic (which was what it was closed as). And they may be correct on that. However, look at the question again, it is four questions. Topicality aside, it's objectively broad, @Dilaton. You can vote to reopen again if you feel that it isn't broad. Feel free to bring it up on meta instead. Moderators are entrusted with the binding vote and are allowed to apply it on posts where they are reasonably certain that the post is closeable. In this case, I agree that the post is probably on topic, which is why it was opened, but broad.
Feb
21
comment Why isn't $F = \frac{\partial \mathcal{L}}{\partial q}$?
The quantity you call force above is actually known as "generalized force" in the context of lagrangian mechanics
Feb
16
comment Why is light speed the limit?
@SachinShekhar ... so do it manually. You can still create a room.
Feb
16
comment Why is light speed the limit?
@SachinShekhar you can do it manually, or the link will appear when you try to add another comment.
Feb
16
comment Why is light speed the limit?
Please continue this discussion in an new Physics Chat room. Long comment discussions on the main site will be removed.
Feb
8
comment Is this derivation of Black Hole entropy viable?
Please continue any further discussion in a new Physics Chat room. In general, try to avoid long comment discussions as these may get cleaned up later; instead creating a chat room and linking to it in the comments. Thanks :)
Feb
3
comment Are the recently observed Dirac monopoles separable?
@KevinKostlan thought so. Care to expand that into an answer?
Jan
28
comment Why does Stephen Hawking say black holes don't exist?
<comments removed> Please hold all further discussion in Physics Chat.
Jan
27
comment Dimensional aspects of the imaginary unit $i$ in physics
I personally think the two questions are a bit different, but I'll let the community decide here.
Jan
27
comment Why touching tooth filling with aluminum foil feels so weird?
@JohnRennie Ah, sorry, too many tabs open. Thought I had reverted this :p
Jan
24
comment How do I explain to a six year old why people on the other side of the Earth don't fall off?
<comments removed> Please do not hold long discussions in the comment, create a room in Physics Chat if you wish to discuss
Jan
24
comment Mass in terms of special relativity
Try to ask a separate question instead of rewriting this one.
Jan
16
comment What are the AdS/CFT papers which study the stringy effects in the bulk?
If it is specific, then this is a reference request. But it's not as specific as most reference requests as it is not addressing a particular study, more of a class of studies. As a resource recommendation it seems too narrow. Not sure, bring this up on meta if you wish, @Dilaton. There is a fuzzy region between ref-req and resource-req that is not clear policywise.
Jan
15
comment What keeps mass from turning into energy?
@dmckee good point, added
Jan
12
comment Is it possible to split baryons and extract useable energy out of it?
@ChrisWhite Nah, was just on mobile when I wrote the answer. Fixed.
Jan
12
comment Is it possible to split baryons and extract useable energy out of it?
@DavidZ Oops, forgot to mention that. Thanks, fixed
Dec
28
comment Really nothing special when falling into a black hole?
I'm a bit fuzzy on this though, it would be best if someone more experienced answered :)
Dec
28
comment Really nothing special when falling into a black hole?
@MartinDrautzburg from here "In terms of visual appearance, observers who fall into the hole perceive the black region constituting the horizon as lying at some apparent distance below them, and never experience crossing this visual horizon". The falling observer does cross a "point of no return", but that point is nothing special otherwise. But from their point of view (moving frame), light particles ahead of them have a different point of no return.
Dec
28
comment Really nothing special when falling into a black hole?
@MartinDrautzburg Well, the other thing is that from the observer's point of view, the true event horizon always lies below him. When he passes the externally visible event horizon, nothing special happens.